To learn more about printing on Red Hat Linux, refer to the following resources.
man printcap — The manual page for the
/etc/printcap printer configuration file.
map lpr — The manual page for the
lpr command that allows you to print files from
the command line.
man lpd — The manual page for the printer
daemon.
man lprm — The manual page on the command
line utility to remove print jobs from the printer spool queue.